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Proof step 9 from proof reachable-transex (previous step)

reachable(trans, s), trans∃(trans, s, tr, s2) ⊦ reachable(trans, s2)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ reachable(trans, s) ↔ (∃ tr. trans∃(trans, S0, tr, s))

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: reachable-def antecedent: succedent: reachable(trans, s) ↔ (∃ tr. trans∃(trans, S0, tr, s)) substlist: [s, trans] → [s2, trans] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 0)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (s2, trans)]]